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Effetti della concimazione azotata su frumento duro in un tipico ambiente mediterraneo

Deidda, Mauro and Marras, Gian Franco (1976) Effetti della concimazione azotata su frumento duro in un tipico ambiente mediterraneo. Studi sassaresi: organo ufficiale della Società sassarese di Scienze mediche e naturali. Sez. 3: Annali della Facoltà di Agraria dell'Università di Sassari, Vol. 24 , p. 318-330. ISSN 0562-2662. Article.

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Abstract

After a brief description of the pedo-climatic environment of Sardinia the results of the experiments carried out by the Istituto di Agronomia ge· nerale e Coltivazioni erbacee dell'Università di Sassari and of the Centro Regionale Agrario Sperimentale di Cagliari on the usage of nitrogen fertilization on durum wheat are presented. Some aspects are examined related to the quantities of nitrogen used at the time of supply, various types of fertilizers in relation to seasonal course, the nature of the soil, the preceding cultures and the different cultivars. The effectiveness of the fertilization is closely related to the water reserve, particularly during the biological phases following heading. The production increases, obtained by supplying nitrogen at the moment of sowing or in winter time, are a consequence due mainly to the increased number of ears per surface unit. Positive effects on the productivity of the ear and on the weight of the kernel are observed with a late supply of nitrogen, provided, naturally, that there is in the soil enough water supply. In conditions where there is absence of water even not very high quantities of nitrogen cause a decrease of the yield, consequent to a reduction of the kernel weight. Besides the productive aspects, the effects of the nitrogen are also examined on the qualitative features of the seed, in particular on the yellow berry and on the proteic content.

Item Type:Article
ID Code:2335
Status:Published
Refereed:Yes
Uncontrolled Keywords:Wheat growing, fertilization, N, Sardinia, South-Italy
Subjects:Area 07 - Scienze agrarie e veterinarie > AGR/02 Agronomia e coltivazioni erbacee
Divisions:001 Università di Sassari > 01 Dipartimenti > Scienze agronomiche e genetica vegetale agraria
Publisher:Università degli studi di Sassari, Facoltà di Agraria - Gallizzi
ISSN:0562-2662
Publisher Policy:Depositato per gentile concessione dell'Editore Gallizzi
Additional Information:Lavoro presentato all'Italian-Israeli Symposium on Dry Land Agriculture - Agrotechniques and Breeding Concept for Field Crops, Tel Aviv, 7-12 Novembre 1976.
Deposited On:18 Aug 2009 10:07

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